Studies on organophosphorous compounds:Reactions of benzosubarones and benzazepines with Lawesson's reagent

摘要

6-Arylidene-2,3 dimethyl-6,7,8,9 tetrahydro-5H-benzocy-cloheptene-5-ones 2a-e and 4-arylidene tetrahydro-1-benzazepin-5-ones 7a-b obtained by the condensation of 2,3-dimethyl benzocyclohepten-5-one 1 and 1-benzazepine-5-one 6 with appropriate aromatic aldehydes,on reaction with Lawesson's reagent in xylene yield phosphorus containing compounds 3a-e and 8a-b,respectively.